When you're first getting started learning how to make your own electronics with the likes of Arduino, the process, pins, and everything else is a little confusing. Arduino forum member Romano d'Ezzelino wanted to make things a little easier, so they designed a simple pinout sheet to track where all the power goes.

The pinout diagrams are simple, but they're easy to read, and especially helpful for beginners. You can print them out full size so you can set your Arduino Uno, ATMega, or ATTiny right on top for a quick reference. The project was inspired by forum member Graynomad's Arduino Due diagram, so be sure to grab that one as well.